Display screen or portion thereof with a sequential graphical user interface of a mobile device



FIG. 1 is a front view of a display screen or portion thereof with a sequential graphical user interface showing a first image in a sequence according to our new design;

FIG. 2 is a second image thereof; and,

FIG. 3 is a third image thereof.

The broken lines showing of a display screen with graphical user interface are included for the purpose of showing portions of the article which form no part of the claim. The appearance of the image sequentially transitions between the images shown in FIGS. 1-3. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a sequential graphical user interface of a mobile device, as shown and described. 